Bontrager Interchange Combo Sensor

ANT+ 2.4 GHz and Bluetooth® Smart wireless digital speed and cadence sensor
ANT+ and Bluetooth® Smart allow simultaneous use with both computer and smartphone
For use with all ANT+ and Bluetooth® Smart wireless technology-enabled devices
Independently adjustable arm for precise alignment of speed and cadence sensors
Includes Bontrager wheel magnet and crank cadence band
Includes a mounting strap to fit most chainstays and 2 zip ties for universal fitting